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The capillary blood velocity is 1 mm/s with an ultrasound beam elevation of 5 mm[6]. [...]it takes 5 s for complete replenishment of the myocardium. The two components of tissue blood flow are ...

Date : 30/11/2011
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Standardized sectional planes Physics of echocardiographic imaging Rheology of blood flow Introduction into the Doppler echocardiography The EACVI Basic echocardiography course includes 12 more ...

Date : 29/09/2010
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Intuitively, tissue blood flow is determined by the amount of blood (capillary blood flow) and the speed at which it moves (red blood cell velocity). [...]myocardial blood flow (MBF) is calculated ...

Date : 30/11/2011
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Microbubbles display the same rheology as red blood cells (RBCs) and thus effectively act as RBC tracers in the intravascular compartment Microbubbles flow through capillaries at a very slow rate ...

Date : 30/11/2011
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VLVOT or VTILVOT are measured using a pulsed wave Doppler (PW) from an apical approach (generally the apical 5-chamber view) in which the ultrasound beam can be aligned with the direction of the ...

Date : 11/12/2013
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The frequency and type of cardiac tumors varies among age groups and are different in adults compared to children[2]. Systemic – constitutional (fever, arthralgias, weight loss, fatigue) and ...

Date : 17/05/2018
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Regurgitant jets can be seen as an dark artifact caused by inhomogeneity of blood flow. Like colour Doppler, jet visualization is useful for screening but not for quantification of the disease. The ...

Date : 11/12/2013
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Cardiac CT and MRI in pulmonary stenosis Cardiac MRI Cardiac Magnetic Resonance gives access to the right ventricle, the right ventricular outflow tract, the pulmonary valve and branches allowing a ...

Date : 11/12/2013
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The main cause of the movement of the blood inside the heart is the pressure difference between chambers caused by the cardiac cycle. A very basic and logical concept is that there is a direct ...

Date : 11/12/2013
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Changes in CFR can assess both the presence [71] and severity [72] of coronary artery disease and can also be used in various other conditions (e.g. to determine if a patient presenting for the first ...

Date : 30/11/2011